Faulty parking sensors - identifying the faulty one

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My Name: boreas7

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Posts: 1
Joined: Wed Jul 27, 2022 2:34 pm
Model: C3 2013-2017 Facelift A51
Year: 2017 (17)
Engine Size: 1.2
Fuel Type: Petrol
Mileage: 18000
Trim Level: VTR+
Gearbox: Other
DPF: No
LHD or RHD: RHD (UK)
Engine name: EB2F PureTech 3-Cylinder (82 PS)

Post

I had read through various sources, the way to find a faulty parking sensor, is to either touch each sensor lightly hoping to feel a vibration if it is working, or passing a mobile phone on video record, listening for a clicking. This obviously is with the car in reverse gear.

I had a faulty parking aid message come up on the screen when engaging reverse and I have found that the Citroen system just shuts down when it detects a defective sensor.

The only way to establish which sensor it is, is either to change each one in turn for a known good replacement, or as I did, use a 0BD2 code reader, to find the defective one.
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